Back to 1kHz / 1000us loop time for wings

[b14ckyy]

User description

Reduces chance of Blackbox corruption on F4 and reduces CPU load with many sensors.
Quads will stay at 500us for better PID control.

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PR Type

Enhancement

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Description

• Set looptime to 1000us for fixed-wing aircraft defaults

  • Reduces CPU load on flight controllers with many sensors
  • Decreases Blackbox SD card write load, especially on F4

• Fix configuration key syntax error in altitude control response

  • Removed erroneous "set" prefix from nav_fw_alt_control_response key

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Diagram Walkthrough

flowchart LR
  A["Fixed-Wing Defaults"] --> B["Add looptime=1000"]
  B --> C["Reduce CPU Load"]
  B --> D["Reduce Blackbox Load"]
  A --> E["Fix Config Key Syntax"]
  E --> F["Remove 'set' Prefix"]

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File Walkthrough

Relevant files

Configuration changes

defaults_dialog_entries.js Add looptime defaults and fix config syntax                            js/defaults_dialog_entries.js Added looptime: 1000 configuration to three fixed-wing aircraft default profiles (AIRPLANE, FLYING_WING, TAILSITTER) Fixed syntax error by removing "set" prefix from nav_fw_alt_control_response key in two profiles Changes applied to default profiles with applied_defaults values 3, 4, and 31 +14/-2

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[qodo-code-review]

PR Compliance Guide 🔍

All compliance sections have been disabled in the configurations.

[qodo-code-review]

Suggestion: Introduce a named constant (and optionally a short unit comment) for the 1kHz/1000µs loop time and reuse it in all added looptime entries to keep the value/units consistent and maintainable. [Learned best practice, importance: 6]

Suggested change

	{
	key: "looptime",
	value: 1000
	},
	const LOOPTIME_1KHZ_US = 1000; // 1kHz = 1000µs
	...
	{
	key: "looptime",
	value: LOOPTIME_1KHZ_US
	},

[sensei-hacker]

I don't necessarily disagree, but as far as blackbox, isn't this equivalent to doubling the blackbox ratio?

[b14ckyy]

We could also set the Blackbox rate to 1/4 instead of default 1/2 but on the other hand there is still no reason to run the PID loop on fixed wings at more than 1kHz. Technically even more than 250Hz makes no sense, except placebo effects.

I think 1000Hz is a good compromise between a big and good looking number and reasonable CPU load for F405 and F435.